
Can CyberKnife be treated with radiation therapy?
The CyberKnife System is the only radiation delivery system that features a linear accelerator (linac) directly mounted on a robot to deliver the high-energy x-rays or photons used in radiation therapy. The robot moves and bends around the patient, to deliver radiation doses from potentially thousands of unique beam angles, significantly expanding the possible positions to …
What types of tumors are suitable for CyberKnife?
The CyberKnife — one of the most advanced forms of radiosurgery — is a painless, non-invasive treatment that delivers high doses of precisely targeted radiation to destroy tumors or lesions within the body. It uses a robotic arm to deliver highly focused beams of radiation.
What is the CyberKnife used for?
A new device was developed exclusively for radiosurgery with the help of approximately 201 numbers of pencil-type Co-60 sources focused on the region of abnormal brain tissues. These sources were spherically distributed in a helmet around the skull, which is fitted onto the patient's head, and the system is called Gamma Knife. With this system, a relatively spherical dose …
What is Cyberknife robotic radiosurgery?
The CyberKnife System is the first and only fully robotic radiotherapy device. CyberKnife uses an approach called stereotactic body radiation therapy (SRS SBRT), delivering precise doses of radiation with extreme accuracy — and accounting for tumor or patient movement in real-time. Watch Video. Learn More.

What is the radiation source in CyberKnife?
What energy does CyberKnife use?
What materials are used for radiation therapy?
Who manufactures the CyberKnife?
What is the success rate of CyberKnife?
What is the difference between radiation and CyberKnife?
Do tumors continue to shrink after radiation?
What are the three key factors for limiting exposure to radiation?
How does potassium iodine help with radiation?
How much does a CyberKnife machine cost?
Does Medicare cover CyberKnife radiation?
Who is a candidate for CyberKnife?
What is a cyberknife?
The CyberKnife — one of the most advanced forms of radiosurgery — is a painless, non-invasive treatment that delivers high doses of precisely targeted radiation to destroy tumors or lesions within the body. It uses a robotic arm to deliver highly focused beams of radiation. The flexibility of the robotic arm makes treatment possible to areas ...
What is a gamma knife used for?
At UCSF Department of Radiation Oncology, the Gamma Knife is used primarily to treat small benign or malignant brain tumors, epilepsy, trigeminal neuralgia or abnormal blood vessel formations located in the brain.
What is SRS in medical terms?
Because stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT) use high doses of radiation to ablate all tissue within the irradiated volume, whether it is tumor or normal tissue, in only a few fractions, precise tumor tracking is required.
Device
The device combines a compact linear accelerator mounted on a robotic manipulator, and an integrated image guidance system. The image guidance system acquires stereoscopic kV images during treatment, tracks tumor motion, and guide the robotic manipulator to precisely and accurately align the treatment beam to the moving tumor.
History
The system was invented by John R. Adler, a Stanford University professor of neurosurgery and radiation oncology, and Peter and Russell Schonberg of Schonberg Research Corporation.
Clinical application
The system is used to treat tumors of the pancreas, liver, prostate, spine, cancer of the throat and brain, and benign tumors .
Further reading
Kilby, W; et al. (2010). "The CyberKnife® Robotic Radiosurgery System in 2010". TCRT. 9 (5): 433–452. doi: 10.1177/153303461000900502. PMID 20815415.
Maria's Story
I was able to undergo my CyberKnife treatments during my lunch hour and would then head right back to work. I was amazed that I didn’t feel a thing. It was so convenient, and I felt great throughout the entire process.
Charles's Story
I had never had radiation, so I didn’t know what to expect. The treatment was amazing. It’s like an X-ray; you feel nothing. I had no impotency, no urination problems, no burns, no problems whatsoever.
Florence's Story
In total, I had 5 sessions of one hour each. Shortly after the last session, the doctor noted a reduction in the tumor. The first session was a little bit difficult because I was stressed, but I quickly adjusted, and after a few sessions I wasn’t afraid anymore.
What is CyberKnife?
CyberKnife isn’t a knife at all — in fact, this treatment doesn’t require any surgery or incisions. But its name affirms it can be just as precise. The CyberKnife system is an advanced radiation therapy treatment that delivers accurate doses of radiation to hard-to-reach tumors and is even able to track their movement.
How does Cyberknife work?
Sometimes, doctors refer to tumors as “inoperable” — either because they are hard to reach or because surgery may not be the best treatment for that person. If you’ve been told you have inoperable cancer, or if surgery just isn’t the right fit for you, CyberKnife may be an option.
CyberKnife at Geisinger
We know that your cancer journey is not the same as anyone else’s — and what works for others may not be the right treatment for you. We’ll be here along the way to answer your questions and explain the entire process to you and your loved ones.#N#We offer the latest CyberKnife system and a highly experienced team at the Frank M.
Next steps
Receiving a cancer diagnosis can be life-changing. Here’s what happens next.#N#You’ve got an army at your side. Find community resources.#N#Learn about cancer care at Geisinger#N#Learn more about Dr. Mahedevan
How does Cyberknife work?
The CyberKnife device emits a narrow beam of radiation from a robotic arm that moves around the patient’s body to accurately target a tumor. Using brain scans taken before and during the procedure, the robotic arm automatically tracks and compensates for small movements.
What is a cyberknife?
It is considered a type of stereotactic radiosurgery . The CyberKnife device emits a n arrow beam of radiation from a robotic arm that moves around the patient’s body to accurately target a tumor. Using brain scans taken before and during the procedure, the robotic arm automatically tracks and compensates for small movements.
What is the difference between a gamma knife and a cyber knife?
The major differences between Gamma Knife and CyberKnife involve the source of radiation and how radiation is delivered to the target. With respect to the radiation sources, both gamma rays (Gamma Knife) and high-energy X-rays (CyberKnife) produce photon energy that has similar effects ( Compton-scatter) on target tissues.
When was the first radiosurgery device invented?
The first major radiosurgery device was introduced by Swedish neurosurgeon Dr. Lars Leksell with the invention of the Gamma Knife in 1968. Gamma Knife uses radioactive cobalt as the radiation source.
What is a gamma knife?
The Gamma Knife is frame based, which means it requires a rigid head frame that is fixed to the patient’s skull during treatment while the CyberKnife is frameless. The Gamma Knife commits multiple radiation beams to a target that is positioned at the center of the radiation field. Once the target is fixed in position, ...
When was the gamma knife invented?
Gamma Knife VS CyberKnife. The first major radiosurgery device was introduced by Swedish neurosurgeon Dr. Lars Leksell with the invention of the Gamma Knife in 1968. Gamma Knife uses radioactive cobalt as the radiation source.

Overview
The CyberKnife System is a radiation therapy device manufactured by Accuray Incorporated. The system is used to deliver radiosurgery for the treatment of benign tumors, malignant tumors and other medical conditions.
Device
The device combines a compact linear accelerator mounted on a robotic manipulator, and an integrated image guidance system. The image guidance system acquires stereoscopickV images during treatment, tracks tumor motion, and guide the robotic manipulator to precisely and accurately align the treatment beam to the moving tumor. The system is designed for stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT). The system is also used for …
History
The system was invented by Stanford University and Peter and Russell Schonberg of Schonberg Research Corporation. It was a development of the first 3D irradiation treatment realized with a linear accelerator producing 4 MeV X rays at that time still used only on plar dimensions as a CAT, by the physicist Renzo Carlo Avanzo in the hospital of Vicenza (Italy). The Cyberknife was the first dedicated linac (linear accelerator) increasing precision and decreasing the time of the treatmen…
Clinical application
The system is used to treat tumors of the pancreas, liver, prostate, spine, cancer of the throat and brain, and benign tumors.
See also
• Image-guided radiation therapy
• Horsley–Clarke apparatus
• Gamma knife
• Robotic surgery
External links
• Accuray Inc.
Further reading
• Kilby, W; et al. (2010). "The CyberKnife® Robotic Radiosurgery System in 2010". TCRT. 9 (5): 433–452. doi:10.1177/153303461000900502. PMID 20815415.
• Principles and Practice of Stereotactic Radiosurgery, Lawrence Chin, MD and William Regine, MD, Editors (2008)